#define _CRT_SECURE_NO_WARNINGS
#pragma warning(disable:6031)

#include "game.h"

void InitBoard(char board[ROW][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	for ( i = 0; i < row; i++)
	{
		for ( j = 0; j < col; j++)
		{
			board[i][j] = ' ';
		}
	}
}

void DisplayBoard(char board[ROW][COL], int row, int col)
{
	int i = 0;
	for ( i = 0; i < row; i++)
	{
		//printf(" %c | %c | %c \n", board[i][0], board[i][1], board[i][2]);
		int j = 0;
		for ( j = 0; j < col; j++)
		{
			printf(" %c ", board[i][j]);
			if (j < col - 1)
			{
				printf("|");
			}
		}
		printf("\n");
		if (i < row - 1)
		{
			//printf("---|---|---\n");
			int j = 0;
			for ( j = 0; j < col; j++)
			{
				printf("---");
				if (j < col - 1)
				{
					printf("|");
				}
			}
			printf("\n");
		}
	}
}

void PlayerMove(char board[ROW][COL], int row, int col)
{
	int x = 0;
	int y = 0;
	printf("玩家走:>\n");
	
	while (1)
	{
		printf("请输入下棋的坐标:>");
		scanf("%d %d", &x, &y);
		//判断坐标合法性
		if (x >= 1 && x <= row && y >= 1 && y <= col)
		{
			//下棋
			//判断坐标是否被占用
			if (board[x-1][y-1] == ' ')
			{
				board[x - 1][y - 1] = '*';
				break;
			}
			else
			{
				printf("坐标被占用，请重新输入\n");
			}
		}
		else
		{
			printf("坐标非法，请重新输入\n");
		}
	}
}

void ComputerMove(char board[ROW][COL], int row, int col)
{
	printf("电脑走:>\n");

	while (1)
	{
		int x = rand() % row;
		int y = rand() % col;
		//判断占用
		if (board[x][y] == ' ')
		{
			board[x][y] = '#';
			break;
		}
	}
}

int IsFull(char board[ROW][COL], int row, int col)
{
	int i = 0;
	int j = 0;
	for ( i = 0; i < row; i++)
	{
		for ( j = 0; j < col; j++)
		{
			if (board[i][j] == ' ')
			{
				return 0;	//棋盘没满
			}
		}
	}
	return 1;
}

char IsWin(char board[ROW][COL], int row, int col)
{
	int i = 0;
	//判断三行
	for ( i = 0; i < row; i++)
	{
		if (board[i][0] != ' ' && board[i][0] == board[i][1] && board[i][1] == board[i][2])
		{
			return board[i][0];
		}
	}
	//判断三列
	for ( i = 0; i < col; i++)
	{
		if (board[0][i] != ' ' && board[0][i] == board[1][i] && board[1][i] == board[i][2])
		{
			return board[0][i];
		}
	}

	//判断对角线
	if (board[1][1] != ' ' && board[0][0] == board[1][1] && board[1][1] == board[2][2])
	{
		return board[1][1];
	}
	if (board[1][1] != ' ' && board[0][2] == board[1][1] && board[1][1] == board[2][0])
	{
		return board[1][1];
	}

	//判断平局
	//如果棋盘满了返回1，不满返回0
	int ret = IsFull(board, row, col);
	if (ret)
	{
		return 'Q';
	}
	//继续
	return 'C';
}
